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roundTripUtil.h
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1 //
2 // Copyright 2016 Pixar
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5 // with the following modification; you may not use this file except in
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24 #ifndef PXRUSDMAYA_ROUND_TRIP_UTIL_H
25 #define PXRUSDMAYA_ROUND_TRIP_UTIL_H
26 
28 
29 #include "usdMaya/api.h"
30 
31 #include "pxr/pxr.h"
32 
33 #include "pxr/usd/usd/attribute.h"
34 #include "pxr/usd/usdGeom/primvar.h"
35 
36 
37 PXR_NAMESPACE_OPEN_SCOPE
38 
39 
43 {
50  PXRUSDMAYA_API
51  static bool IsAttributeUserAuthored(const UsdAttribute& attr);
52 
53  PXRUSDMAYA_API
54  static bool IsAttributeMayaGenerated(const UsdAttribute& attr);
55 
57  PXRUSDMAYA_API
58  static void MarkAttributeAsMayaGenerated(const UsdAttribute& attr);
59 
62  PXRUSDMAYA_API
63  static bool IsPrimvarClamped(const UsdGeomPrimvar& primvar);
64 
65  PXRUSDMAYA_API
66  static void MarkPrimvarAsClamped(const UsdGeomPrimvar& primvar);
67 
72  PXRUSDMAYA_API
73  static bool GetAttributeArray(
74  const UsdAttribute& attr,
75  unsigned int* index);
76 
77  PXRUSDMAYA_API
78  static void MarkAttributeAsArray(
79  const UsdAttribute& attr,
80  const unsigned int index);
81 };
82 
83 
84 PXR_NAMESPACE_CLOSE_SCOPE
85 
86 
87 #endif
Scenegraph object for authoring and retrieving numeric, string, and array valued data, sampled over time.
Definition: attribute.h:176
static PXRUSDMAYA_API bool IsPrimvarClamped(const UsdGeomPrimvar &primvar)
Primvars in USD are not clamped but they may have originally have been clamped.
static PXRUSDMAYA_API bool GetAttributeArray(const UsdAttribute &attr, unsigned int *index)
If Maya attribute arrays are used, we may need to store this encoding.
static PXRUSDMAYA_API void MarkAttributeAsMayaGenerated(const UsdAttribute &attr)
Annotate that an attribute was generated by Maya.
static PXRUSDMAYA_API bool IsAttributeUserAuthored(const UsdAttribute &attr)
Sometimes primvars like displayColor and displayOpacity aren't really authored by the user and instea...
Schema wrapper for UsdAttribute for authoring and introspecting attributes that are primvars...
Definition: primvar.h:260
This holds some utility functions for dealing with data from Maya to Usd and back.
Definition: roundTripUtil.h:42